Transactions

1905.

Mill Oils.

1904.

The power of this mill with the No. 8 Refiners off, pumping back and charging which make the great variation.

Difference of Averages 8 H.P. or 1.7 per cent. on Average of Test.

New Oils.

Difference of Averages 13.8 H.P. or 3.5 per cent. on Average of Test.

Result.

MILL OILS.- Average of October 18, 20, 21, 1904. (Load without No. 8

I.H.P.

Refiners),

465.4

NEW OILS.

Average of March 22. 23, 24, 1905. (Load without No. 8
Refiners), ..

390.4

Reduction, .

75.0

or 16.2 per cent,

Variation per

cent.on aver

age of day.

New Oils.

1905.

Mill Oils.

1905.

413

Test No. 17.

Test made at Niederschlemma, Germany.

POWER TEST ON A GERMAN PAPER MILL.

Engine - Triple Tandem Compound. Condensation. Made by the Crimmitschauer Maschinenfabrik in 1897. Cylinders: No. 1.-460 m/m.

No.

2,-800 m /m. No. 3,-1,050 m/m. Stroke 1,000 m/m. Pressure 12 Atm. Superheating from 260 to 320 °C. Normal I. P. S. 500.

Machinery Operated-7 Schleifapparate mit je 5 Pressen. 4 Vorsortirer mit Schuttelsieben. 4 Raffineure. 4 Feinsortirer. 4 Rundsiebpappma

schinen. I Wasserpumpe. 1 Elektromotor.

Complete Test -6 days. 6 indicators.

1,800 indicator cards. 3 operators.

Number of
Cards.

Difference of Averages 22.7 P.S. or 4.4 per cent. on Average of Test.

Difference of Averages 21.2 P.S. or 4.4 per cent. on Average of Test.

Variation per

cent, on average of day.

Result.

MILL OILS.

Average of February 20, 21, 22, 1905,

NEW OILS. Average of May 23, 24, 25, 1905,

Reduction,

or 5.6 per cent.

P.S. Per Ctr. Holzstoff Produced.

I.P.S.

511.37 482.43

28.94

Machinery Operated- Lathes, Drilling Machines, Emery Wheels, Grind Stone and all machines for a first class Brass Fitting Shop.

The current used was measured by the number of revolutions of the disk inside the watt meter, which, from information obtained from the makers, the British Thompson, Houston Co. makes twenty-five revolutions per board of trade unit passed. The disk revolutions give, therefore, the actual ratio of current used under the two conditions of working.

Note This is the second series of lubricating tests made upon this shop. The first series showing such great reductions due to the fact that the shop oil had left a very undesirable deposit, that it was considered fair to all parties to make another trial giving the shop oil the advantage of the bearings that has been cleaned by the new oil. Assuming that the shop oil would again put the bearings in the same state as when first found (which proved to be the case) sufficient time was allowed for the new oil to again clean away these deposits before the comparative test was made.